e 
THE EURYPTERIDA OF NEW YORK 431 
GEOLOGIC DISTRIBUTION OF NORTH AMERICAN SPECIES OF EURYPTERIDS AT PRESENT KNOWN 
FORMATION 
. latifrons nov... 
. otisius Clarke............ 
. Siluriceps nov........... 
wlelelelelele) 
. testudineus nov........... 
Echinognathus clevelandi 
° © CN ANA ® BD 
Eurypterus approximatus 
. chadwicki mov......... 
. lacustris Hall,..... 
Hall... cece cee 
maria Clarke....... 
megalops nov... 
pristinus nov. 
DEERE btutihs 
pustulosus Hall.... 
ranilarva nov.,........... 
? ste latus nov...... 
sis Miller & Gurley.... 
AN ARWDH HH ODO CONTAUN WD 
eaves.... 
“ 
fieldi C. E. Hall 
Boe & wi 
oo 
2) 
- newlini (Claypole).. 
Dt bf 
oy 
=) 
om 
6 
Ke) 
a 
x 
5S 
S 
3 modestus nov. ......0005, 
S: myops Clarke...... 
s. (Drepanopterus) longicau- 
datus nov.... . 
H. socialis Sarle... 
° 
Pteryzotus atlanticus nov.... 
buffaloensis (Pohlman).... 
.cobbi Hall. .......... 
. globiceps mov.... 
- monroensis Sarle .. 
? nasutus mwov,... 
were LO™M AVI Rw vm VY a NUVI ww Ft ON AVI RP WN SU 
OOOO yD 
CAMBRIC 
Potosi 
limestone 
= 
Dolichopterus breviceps nov..|........ 
. frankfortensis wou........).....000)e06- 
. macrochirus Hall........|. 
. Stylonuroides mov........}..-.506- 
Walcott)........).. 
Hall & Clarke|........ 
. dekayi Hall... vo lite cece lice eee 
. lacustris var. pachychirus ee 
ritetbrdemae Sarin TTD 
prominens Hall & Clarke..|........[.... 
remipes Dekay........... oleae. 
(Onychopterus) kokomoen-| - 
. (Tylopterus) boylei Whit-| a 
. (Anthraconectes) “mans-} 
. (Anthr.) mazonensis Meek| 
Husarcus cicerops Clarke....|........|]. 
. scorpionis Grote & Pitt... |... 2... of... fe. 
S. cestrotus Clarke.......... oleae. le. 
S. excelsior Hall... 0... 0... fe ce ee ee ele ee - 
-limbatus mov... ccc ec cede ee ee ee ede ees 
. Multispinosus mov........ ee, ee ne 
(?). wrightianus (Dawson)..|........].... 
Hughmilleria magna 0v.....|........1. 221 
H. shawangunk Clarke......|..... 
H. socialis var. robusta Sarle.|........|.... 
. 
soe 
. cobbi Hall var. juvenis nov.|........ 
. grandis (Pohlman) oceans eee 
. macrophthalmus Hall... .|. 
. normanskillensis ov......}........ 
. prolificus mov. .........../...00 000 [ee 
ORDOVICIC SILURIC DEVONICc CARBONIC 
——s ae 
(Nob- 
ellton 
shale 
Schenectady 
ing- 
atskill. 
Campb 
beds 
beds a 
grit b 
Bertie 
waterlime 
Rondout 
Waverly 
lesville dolomite) 
Cc 
Normanskill 
Utica shale 
Richmond beds 
Clinton beds 
Lockport 
Guelph 
dolomite 
Pittsford shale 
Shawangunk 
waterlime 
Manlius 
limestone 
Portage 
Chemu 
Productive Coal 
Measures 
rr creme fg ee ce fetes | nee | ew | ene | ere we, | rn ef com | mn | ee f ee ff 
to | Ir | 12 | 13 
“%» 
A 
wm 
“ma 
~yY 
oo 
Lo) 
= 
ey 
bad 
wm 
band 
a 
ng 
al 
et 
oo 
ew en 
XC 
” 
oo. oo se oe . 
s «© 8 oo. o eo. . 
oo. oo oe soe . 
rr) . oo. oo. . 
7 
. se oe woe . 
. ars . 7 . 
. 2. - oe . 
ne, 
« 
eo . oo. . 
. . - oe . . 
. . . oo oe . 
7 Ke: 
4 
Ao! 
a 
rad 
w 
a 
7 kM: eee 
KA KKK: 
wlll? 
en ee | ane | ers | wmeeencceeen | mere jf ees | mecmee | eens | cemmeeeetere | ene | wmemneeenceniee | mmmcenarnn | ener | verre | nme ve fh te | nme 
a The Schenectady beds have been termed in this work the Schenectady facies of the Frankfort beds. They are now referred 
>» the upper Trenton as a distinct unit [see p. q11.] 
bThe Shawangunk grit includes the faunas here described from the Delaware Water Gap and Swatara Gap in Pefinsyl- 
ania 
tango (Devono-Carbonic) formation. 
d@ The horizon of this species is unknown. It probably came from below the Productive Coal Measures (Pennsylvanian). 
se@ p. 417]. 
¢c hee chafles Butts informs us that this specimen must have come from either the Chemung as he has limited it, or his Cone- 
